Quasar luminosity function : J/MNRAS/260/202

Access to
vizier
VizieR
vizier
VizieR FTP ReadMe
TAP
TAP
Xmatch
Fits
Download notebook

Authors : HAWKINS M.R.S. orcid , VERON P. (hide) , VERON P. et..al

VizieR DOI : 10.26093/cds/vizier.72600202
Bibcode : 1993MNRAS.260..202H (ADS) (Simbad) (Objects)
...(more)
(hide)

CDS Keywords : QSOs; Redshifts; Photometry
UAT : Quasars, Redshifted, Photometry

Records :

Inserted into VizieR : 14-Dec-1994
Last modification : 20-Jun-2024

The quasar luminosity function from a variability-selected sample (1993)

Keywords : quasars general - cosmology : observations

Abstract:A sample of quasars is selected from a 10-yr sequence of 30 UK Schmidt plates. Luminosity functions are derived in several redshift intervals, which in each case show a featureless power-law rise towards low luminosities. There is no sigh of the 'break' found in the recent UVX sample of Boyle, Shanks & Peterson. It is suggested that reasons for the disagreement are connected with biases in the selection of the UVX sample. The question of the nature of quasar evolution appears to be still unresolved. ...(more)
Abstract: (hide)
Monthly Notices policies
A sample of quasars is selected from a 10-yr sequence of 30 UK Schmidt plates. Luminosity functions are derived in several redshift intervals, which in each case show a featureless power-law rise towards low luminosities. There is no sigh of the 'break' found in the recent UVX sample of Boyle, Shanks & Peterson. It is suggested that reasons for the disagreement are connected with biases in the selection of the UVX sample. The question of the nature of quasar evolution appears to be still unresolved. 


                


                

                    

                


                

                    

                


                

                    
Catalogue provenance